Sampling skid for subsea wells

Abstract

A system for sampling production well production fluids from a manifold interface panel on a subsea production manifold. In some embodiments, the system includes a remotely operated vehicle, a skid coupled to the remotely operated vehicle, a sample tank supported on the skid, and a fluid transfer pump operable to convey production fluid from at least one of the production wells through the manifold interface panel into the sample tank.

What is claimed is: 
     
       1. A method of removing a hydrate blockage from a flow line in communication between a production well and a subsea production manifold comprising a manifold interface panel, the method comprising:
 deploying a sample skid to the subsea production manifold and coupling the sample skid to the manifold interface panel; 
 extracting production fluid from behind a hydrate blockage formed in the flow line with respect to the manifold interface panel and to the sample skid. 
 
     
     
       2. The method of  claim 1 , further comprising reducing pressure in the flow line between hydrate blockage and the manifold. 
     
     
       3. The method of  claim 1 , further comprising conveying the extracted production fluid to a sample tank on the skid. 
     
     
       4. The method of  claim 1 , further comprising dissolving the hydrate block by injecting methanol from a methanol supply tank supported on the skid through the manifold interface panel into the flow line behind the hydrate blockage. 
     
     
       5. The method of  claim 1 , further comprising dissolving the hydrate block by injecting a hydrate dissolving fluid from a supply tank on the skid through the manifold interface panel into the flow line behind the hydrate blockage.